公开(公告)号：US09365057B1

公开(公告)日：2016-06-14

申请号：US15049909

申请日：2016-02-22

Applicant: Seiko Instruments Inc.

Inventor： Takumi Seino ,  Kouhei Miyawaki

IPC: B41J11/04 ,  B41J2/315

CPC classification number: B41J11/04 ,  B41J2/32 ,  B41J29/02 ,  B41J29/38

Abstract: A printer unit including: a platen roller including a driven gear; a drive source configured to rotate the platen roller about a predetermined axis; a frame, which is configured to rotatably support the platen roller and to which the drive source is assembled; a reduction gear configured to transmit a driving force of the drive source to the driven gear in a decelerated manner; a thermal head to be held in press contact with an outer peripheral surface of the platen roller; a gearbox portion, which is formed on the frame and to which the driven gear and the reduction gear are assembled, the gearbox portion having an opening for assembling the reduction gear; and a gear cover configured to close at least a part of the opening of the gearbox portion, the gearbox portion having a recessed portion recessed in a direction intersecting an axial direction of the predetermined axis, the gear cover including: a hook portion to be engaged with the gearbox portion; and a projecting portion to be fitted to the recessed portion of the gearbox portion.

Abstract translation: 一种打印机单元，包括：压辊，包括从动齿轮; 驱动源，构造成使压纸辊绕预定轴线旋转; 框架，其构造成可旋转地支撑压纸辊并且驱动源组装到该框架上; 减速齿轮，其构造成以减速方式将所述驱动源的驱动力传递到所述从动齿轮; 保持与压辊的外周面压接的热敏头; 齿轮箱部分，其形成在框架上并且从动齿轮和减速齿轮组装在其上，齿轮箱部分具有用于组装减速齿轮的开口; 以及齿轮盖，其构造成关闭所述齿轮箱部的所述开口的至少一部分，所述齿轮箱部具有在与所述规定轴线的轴向交叉的方向上凹陷的凹部，所述齿轮盖包括：钩部， 与齿轮箱部分; 以及与齿轮箱部的凹部嵌合的突出部。

公开(公告)号：US11077684B2

公开(公告)日：2021-08-03

申请号：US16941773

申请日：2020-07-29

Applicant: Seiko Instruments Inc.

Inventor： Kouji Kawaguchi ,  Shinichi Sudo ,  Takumi Seino

IPC: B41J15/04 ,  B41J2/335 ,  B41J11/04

Abstract: A thermal printer, includes a head unit including a thermal head configured to perform printing on a recording sheet; a platen unit, which includes a platen roller configured to convey the recording sheet, and is separably combined with the head unit; a printer main body, which has a recording-sheet receiving portion configured to receive the recording sheet, and has the head unit mounted thereto; a printer cover, which has the platen unit mounted thereto, and is coupled to the printer main body so as to be pivotable; and a separator, which is provided in the recording-sheet receiving portion, and is configured to separate parts of the recording sheet, which is rolled into a roll shape around a core body, folded on each other at a rolling start portion, which is rolled around the core body and has a turn-back shape.